The correct way to punctuate a sentence that states: "Of course it is none of my business, but -- " is to place a period after the word "but." Don't use excessive force in supplying such a moron with a period. Cutting his throat is only a momentary pleasure and is bound to get you talked about.

In a dilemma, it is helpful to change any variable, then reexamine the problem.

The best thing about space travel is that it made it possible to go elsewhere.

A fool cannot be protected from his folly. If you attempt to do so, you will not only arouse his animosity but also you will be attempting to deprive him of whatever benefit he is capable of deriving from experience. Never attempt to teach a pig to sing; it wastes your time and annoys the pig.

To permit irresponsible authority is to sell disaster.

He never gave up his search for the Door into Summer.

A zygote is a gamete's way of producing more gametes. This may be the purpose of the universe.